A - Human Necessities – 61 – M
Patent
A - Human Necessities
61
M
A61M 16/06 (2006.01) A61M 16/04 (2006.01)
Patent
CA 2220199
Known laryngeal mask assemblies have a mask portion of elliptical shape that is inflatable at the patient end to seal in the region of the hypopharynx. In the present invention the assembly has a mount and an inflatable member attached to the mount. The inflatable member is formed by heat bonding together opposite walls of a flat balloon and at the same time cutting an aperture through the walls, so as to form a central web within an outer inflatable ring. The central web is attached to a concave surface on the forward surface of the mount with the aperture in the web aligned with an opening in the mount.
Les appareillages de masque laryngé connu comportent une partie masque de forme elliptique qui est gonflable à l'extrémité près du patient pour isoler de façon étanche la région de l'hypopharynx. La présente invention porte sur un appareillage comportant un raccord et un élément gonflable relié à ce dernier. Cet élément gonflable est formé en liant thermiquement les parois opposées d'un ballonnet plat, et en pratiquant en même temps une ouverture dans les parois, de façon à former un voile central à l'intérieur d'un anneau externe gonflable. Le voile central est relié à une surface concave sur la surface avant du raccord, et son ouverture est alignée avec l'ouverture du raccord.
Fetherstonhaugh & Co.
Smiths Industries Public Limited Company
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